riding sag question

[Bandit9]

I'm not sure, but I think it is 70-75mm that is ideal.

I will measure mine tomorrow and see.

[Jakobi]

Most people aim for around 30% of the travel. On my 2010 with the TTX I run around 65-65mm race sag on the forks. Haven't measured up the 2013 yet, but will do once they break in.

Looking at the spec sheets the 2013 models have a little more travel up front, and a little less at the rear than previous chasis (2011). Makes sense that they probably want a little more sag up front and a little less at the rear. The main thing to note is that its all just a starting point and what you really want to achieve is a balance that feels good for the rider and gets both ends working together. Remember the springs support the weight of the bike and rider. The damping controls the rate at which things move.

[andoman]

Originally Posted by Jakobi

Remember the springs support the weight of the bike and rider. The damping controls the rate at which things move.

Excellent point. To elaborate further: springs and pre-load (what actually gives us our sag) affects trail. Trail has the number one affect on handling: The way the steering feels, the way the bike turns, the way the front end sticks, dives in, washes out, how stable it is at speed, etc., etc.
Valving, as jakobi pointed out, controls the actual action of the suspension.
As twowheels mentioned, the cross-over effects (where too much or too little sag meets contrary valving as a function of stroke position), is often the beginning of the tail chasing nightmare.

It is worth joining KTMTalk just to search "trail" and "offset" in the suspension sub-forum. Then read until your head explodes.
For all the crappy factory valving we GG riders have dealt with, we haven't been forced to experiment with every off-set t-clamp between 14mm and 22mm to chance upon the one that makes our front end go where we want it to.